Question

Consider your favorite radio station. AM radio has a frequency between 535 kilohertz and 1605 kilohertz, and FM radio has a frequency between 88 megahertz and 108 megahertz. Calculate the wavelength and the energy of the electromagnetic waves from your favorite radio station.

Answer 1

Answer

The wavelength for 550 kHz signal is

             $\lambda = \dfrac{3.00 \times 10^8}{550\times 10^3}$

                         λ = 545.45 m

The wavelength for 1600 kHz signal is

              $\lambda = \dfrac{3.00 \times 10^8}{1600\times 10^3}$

                         λ = 187.5 m                        

The wavelength for 88 MHz signal is

              $\lambda = \dfrac{3.00 \times 10^8}{88\times 10^6}$

                         λ = 3.41 m

The wavelength for 108 MHz signal is

             $\lambda = \dfrac{3.00 \times 10^8}{108\times 10^6}$

                         λ = 2.78 m